Home / 9,321.48-13,984.65-3,478.55

Finding the Fourth Proportional to 9,321.48, 13,984.65 and 3,478.55

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Solution

The fourth proportional to 9,321.48, 13,984.65 and 3,478.55 is: 5,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.48 : 13,984.65 = 3,478.55 : x
  2. Step 2: Convert to fraction form
    9,321.48/13,984.65 = 3,478.55/x
  3. Step 3: Cross multiply
    9,321.48x = 13,984.65 × 3,478.55
  4. Step 4: Simplify right side
    9,321.48x = 48,646,234.33
  5. Step 5: Solve for x
    x = 48,646,234.33/9,321.48
  6. Step 6: Final answer
    x = 5,218.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.